You realize, of course, that's the same myth that says if you put wine in your spaghetti sauce all of the alcohol will just boil-off right away. It doesn't happen like that for the reasons you explained. The more volatile component (the alcohol, in this case) will be preferentially partitioned into the vapor, and only gradually depleted from the liquid over a period of time as the sauce is simmering.
Hmm, maybe a little off topic.
Not off topic at all. That's a great illustration, one that a lot of people can relate to.
HJ
